CR:700B Series Sound Level Meters
CR:720B OSHA Sound Level Meter
The CR:720B Sound Level Meter is a simple to use noise measurement tool that has been designed to meet the requirements of the OSHA occupational noise regulations and for use in areas where this method of noise exposure assessment is used.
The instrument provides a basic set of measurements which can be accessed by the keys on the front of the instrument, with the
additional measurements provided when the Sound Level Meter is connected to a PC.
Applications
> Occupational Noise Assessments
> Environmental Noise Impact Measurements
> QA & Product Developement
> Basic Noise Measurements & Inspections
> Noise Ordinance Enforcement
> Community Noise Assessment
The CR:720B provides for the measurement of TWA, LAVG, % Dose and Estimated % Dose which can be used for the assessment of noise levels in
line with the OSHA requirements. The additional of the Peak(C), Maximum and Minimum functions allow the meter to be used
where these extra functions are required.
If the measurement data is downloaded to a PC using the supplied software, the instrument will display the 2nd and 3rd data sets which are
described below.The CR:720B can also be used as a basic Sound Level Meter using the SPL(S) and Maximum functions.
- Links:
- Product Datasheets: CR:720B OSHA Sound Level Meter Datasheet
- Product Information: Sound Level Meter Measurement Kits
CR:704B & CR:703B Data Logging Sound Level Meters
The CR:700B series is range of high specification Data Logging Sound Level Meters and Personal Sound Exposure Meters. the CR:703B and CR:704B Type 1 and 2 Data Logging Sound Level Meters. All of the instruments are based around a common core, with all measurement functions available to any of the instruments.
- Data Logging of measured functions
- Event and Time History Data Stored
- User Programmable Functions and Keypads
- Independent C Weighted Peak Channel
- Real Time Clock & Calendar
- Multiple Simultaneous Integrators & Measurements
- Windows Software
The 700Setup for Windows software supplied allows the user to configure the measurement parameters of the instrument. It also allows a new keypad to be printed to suit the requirements of the measurement situation.
The instruments store two different forms of data. The first are the events, which can be started and stopped manually. The instrument can also be programmed to start and stop automatically if required. The measurements provided by each event can be configured as required, and can include functions such as Run Time, Leq, LAmax, LEP,d, Peak(C), SEL, % Dose, Exposure Pa2h, TWA, L10, L50 and L90.
The second data form is time history information, stored as Short Leq samples. The acquisition rate for the Short Leq data can be changed from between 1/16 (0.0625) seconds to 16 seconds, allowing the total measurement period available and data resolution to be adjusted as required.
Both forms of data can be downloaded with the supplied software. The Acoustic Editor for Windows program is require for analysis of the Short Leq information.
